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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11030) Enhance storage layer to create one delta file per write
Date Tue, 23 Jun 2015 20:26:43 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14598314#comment-14598314
] 

Eugene Koifman commented on HIVE-11030:
---------------------------------------

The test failure is not related.  The same failure appears in other runs w/o this patch.

[~alangates] could you review please?

> Enhance storage layer to create one delta file per write
> --------------------------------------------------------
>
>                 Key: HIVE-11030
>                 URL: https://issues.apache.org/jira/browse/HIVE-11030
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>    Affects Versions: 1.2.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>         Attachments: HIVE-11030.2.patch, HIVE-11030.3.patch
>
>
> Currently each txn using ACID insert/update/delete will generate a delta directory like
delta_0000100_0000101.  In order to support multi-statement transactions we must generate
one delta per operation within the transaction so the deltas would be named like delta_0000100_0000101_0001,
etc.
> Support for MERGE (HIVE-10924) would need the same.



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